حزمة شحن الثلج الجاف: كيفية الحجم والتسمية في 2025
إذا كنت بحاجة إلى حزمة شحن الجليد الجافة التي تبقى بالفعل مجمدة, start by sizing dry ice to transit hours, choosing the right insulation, and printing UN 1845 with net kilograms on a vented box. Most lanes work with 5-10 رطل لكل 24 hours plus a 24‑hour buffer, و 2025 checklists require clear labels and vent paths for CO₂.
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How much dry ice per day keeps goods frozen on your lane (with a copy‑paste calculator).
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What to print on the label so carriers accept your dry ice shipping pack the first time.
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When to choose gel/PCM instead of a dry ice shipping pack to simplify air shipments.
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Which insulation (EPS, بور, VIP) right‑sizes cost and mass for 24–120 h routes.
What is a dry ice shipping pack and when should you use it?
إجابة قصيرة: أ dry ice shipping pack is a vented, insulated parcel that keeps payloads rock‑solid frozen using solid CO₂ (sublimes at −78.5 °C). Use it when your product must arrive fully frozen end‑to‑end; otherwise consider gel/PCM if chilled control is enough. علامة "الثلج الجاف/ثاني أكسيد الكربون, صلب,"و 1845, وصافي كجم, and ensure gas can vent.
لماذا يهمك: Venting prevents pressure buildup; correct markings speed acceptance and reduce delays. 2025 acceptance materials emphasize airline‑specific limits and providing net weight at booking, بينما USPS caps domestic air mail at ≤5 lb per piece and prohibits international mail with dry ice. If your lane is short or only needs chilled ranges, a gel/PCM pack avoids hazmat steps.
Dry ice shipping pack vs. gel/PCM—what fits your lane?
Choose a dry ice shipping pack when you need deep‑frozen conditions or ultracold lanes; choose gel/PCM when you need 2–8 °C or moderate frozen (على سبيل المثال, -15 درجة مئوية) with simpler paperwork. Larger pellets or blocks sublimate slower for multi‑day routes; tiny pellets are better for fast pull‑down.
| خيار | Temp capability | وطن (هواء) | ماذا يعني لك |
|---|---|---|---|
| Dry ice shipping pack | ≈ −78.5 °C surface | نعم | طويل; ultracold lanes; ملصق & تنفيس مطلوب. |
| PCM −21 درجة مئوية / −26 °C bricks | المجمدة (−15 to −26) | Usually no | Easier processing; قابل لإعادة الاستخدام; not ultracold. |
| 0 °C gel / +5 ° C PCM | 2-8 درجة مئوية | لا | Refrigerated goods; simple returns. |
نصائح عملية يمكنك استخدامها اليوم
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For DTC frozen food: ما قبل الشاحن; place product low, dry ice above; ملء الفراغات; leave vents unobstructed.
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For hot lanes (صيف): استخدم high end of 5–10 lb/day and consider PUR or VIP insulation.
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For biologics: Add a data logger and record صافي الثلج الجاف بالكيلوغرام on the label before tender.
حالة العالم الحقيقي: A pastry brand cut melted‑product claims by 38% after switching to a 2‑inch liner, larger pellets, and a 24‑hour buffer—ice spend stayed flat while failures plummeted.
How much dry ice should a dry ice shipping pack carry?
حكم الإبهام: يخطط ~ 5-10 رطل (2.3-4.5 كجم) لكل 24 ساعات of transit plus an extra 24 ساعات for buffer. ابدأ بالقرب من 7.5 lb/day and adjust for insulation, الحرارة المحيطة, حجم بيليه, and whether the box is opened mid‑route.
لماذا يعمل: Dry ice absorbs substantial heat while subliming (≈570 kJ/kg), so modest masses can cover a day or two in a tight shipper. Box R‑value, مساحة الرأس, and pellet size drive real‑world loss rates.
Quick planner table
| Transit time | Typical dry ice (رطل) | ملحوظات |
|---|---|---|
| 12–24 h | 5-10 | Thick foam → 5; summer lanes → 10. |
| 24-48 ح | 10-20 | Prefer larger pellets for slower loss. |
| 72 ح | 20-30 | Consider bigger box or added liner. |
| 96 ح | 30-40 | Validate with a lane test before scale. |
How should you label a dry ice shipping pack in 2025?
Print this on one panel (same surface as Class 9 when size allows):
و 1845
ثاني أكسيد الكربون, صلب (الجليد الجاف)
الجليد الجاف الصافي: ____ kg
Shipper: ____________________
Consignee: ____________________
ل هواء, apply the Class9 الماس, keep packaging تنفيس, and follow IATA PI954. Airlines may impose additional limits and ask for net weight at booking. USPS تصاريح ≤5 lb domestic air under PI 9A and prohibits international mail. Passenger flights allow ≤2.5 kg per person/package with airline approval and venting.
How do you pack out a dry ice shipping pack step by step?
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ما قبل التعرّف product and shipper to reduce the day‑one heat load.
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خط & isolate: add a poly liner and absorbent pad; place a tray to avoid direct contact.
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حمولة: product low, dry ice above; fill voids to reduce convection.
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يغلق & تنفيس: never seal the outer box airtight; keep gas paths clear of tape.
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ملصق & كتاب: علامة و 1845 مع صافي كجم, يضيف Class9 للهواء, واتبع 2025 قائمة التحقق من القبول.
Safety and ventilation: CO₂ limits to respect
يصبح الجليد الجاف غازًا. Indoors or in vehicles, gas can accumulate. Keep rooms ventilated and train staff. Reference limits: 5,000 جزء في المليون TWA و 30,000 جزء في المليون; add CO₂ alarms in staging areas. Always use insulated gloves and eye protection.
Which insulation and pellet size fit your dry ice shipping pack?
Pick insulation for duration و pellet size for endurance. EPS works for short lanes; PUR and VIP cut heat gain for 48–120 h routes and allow less refrigerant mass. Larger pellets or slabs sublimate slower on multi‑day lanes.
| Pack type | Typical window | ملحوظات | Meaning for you |
|---|---|---|---|
| EPS (1–2″) | 24-48 ح | Lowest R‑value; lowest cost | Good for short lanes; more dry ice needed. |
| بور | 48-96 ح | Higher R/inch; consistent | Reduce mass and carton size. |
| VIP | 72–120 h+ | Very high performance | ممرات طويلة, high value payloads; lighter overall. |
2025 trends shaping your dry ice shipping pack
ما الجديد في 2025: IATA’s 66th Edition إضافة 1 (effective Apr 30, 2025) highlights airline‑specific dry ice limits and net weight at booking; carriers refreshed job aids stressing Class 9 placement with the Proper Shipping Name. USPS kept the ≤5 lb domestic air cap. VIP adoption keeps rising to trim refrigerant mass and freight.
أحدث التطورات في لمحة
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Clearer acceptance paperwork: Fewer dock delays if you mirror the 2025 قائمة المراجعة.
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Preprinted cartons: More boxes ship with dry‑ice panels to reduce pack errors.
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توقعات السوق: Several reports project ~7–7.4% CAGR for dry ice through 2032, led by food and healthcare demand.
نظرة السوق: Near‑shoring and recyclable materials are trending, while IoT loggers make lane validation simpler and faster for audits.
الأسئلة المتداولة
How much dry ice per day for a small dry ice shipping pack?
يخطط 5-10 رطل لكل 24 ساعات, ثم أضف one extra day as buffer; use more for hot lanes or thin walls.
What must appear on my label in 2025?
Include و 1845, "جاف الثلج/ثاني أكسيد الكربون, صلب," net dry ice in kilograms, الشاحن/المرسل إليه, و Class9; keep the package vented.
Can passengers carry a dry ice shipping pack?
نعم, ≤2.5 كجم (5.5 رطل) per person/package with airline approval; mark and vent the container.
Can I mail a dry ice shipping pack via USPS?
Domestic air only, ≤5 رطل لكل بريد بريد; international mail is not allowed.
Is dry ice regulated for ground?
With some services (على سبيل المثال, certain ground networks), dry ice isn’t hazmat—but markings are still required. Check your carrier page for specifics.
When should I pick PCM instead of a dry ice shipping pack?
يختار −15 °C to −26 °C PCM for many frozen lanes or 0 °C gel/+5 °C PCM for 2–8 °C when you want easier processing and reuse.
ملخص & التوصيات
يتذكر: حجم الخاص بك dry ice shipping pack بواسطة time first (5-10 رطل/يوم + 24‑hour buffer), then select insulation (EPS → PUR → VIP) and pellet size. Vent the box, print و 1845 مع صافي كجم, and place Class9 لكل 2025 guidance. Train teams on التعرض CO₂ limits and stage packs in ventilated zones.
الخطوات التالية:
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Estimate dry ice with the calculator above. 2) Print a label block with و 1845 و صافي كجم. 3) Pilot two shipments and weigh post‑delivery to tune mass. 4) Add the 2025 قائمة التحقق من القبول to your SOP.
حول Tempk
We’re a cold‑chain engineering team that turns complex transport requirements into simple packout SOPs. We validate dry ice shipping pack designs lane‑by‑lane, right‑size coolant loads, and provide label templates that pass first‑time acceptance. Customers in food and life sciences routinely cut claims by double digits while lowering re‑ship costs. Ready to ship colder, أكثر أمانًا, cheaper? طلب أ 15‑minute packout review and get a route‑specific BOM, تسميات, and a tested ice calculator.
